Concrete-mixer.



No. 891,756. I PATENTED JUNE 23, 1908. G. P. WHITE.

CONCRETE MIXER. APPLICATION FILED SEPT. 17,1906.

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No. 891,756. PATENTED JUNE 23, 1908.

G. P. WHITE.

CONCRETE MIXER. APPLICATION FILED SEPT. 17,1906.

3 SHEETS-SHEET 2.

INVENTOR W 2 @WM wms m g 1 No. 891,756. PATE NTED JUNE 23, 1908.

G. P. WHITE.

CONCRETE MIXER. APPLICATION FILED SEPT.17,1906.

3 SHEETS-SHEET 3.

$0151 Maia/ LA.

GEORGE /PATCHETT WHITE, or WALLACE, IDAHO.

CONCRETE-MIXER.

Specification of Letters Patent.

?atented June 23, 1908.

Applicationfiled September 17, 1906. Serial No'. 335,019.

To all whom it may concern:

,Be it known that I, GEORGE PATcHE'rT WHITE, a citizen of the United States, resid-' ing at Wallace, in the county of Shoshone and State of Idaho, have invented certain new and useful Improvements in Concrete- Mixers, of which the following is a specification. f

My invention relates to "a concrete-mixer adapted to be used for mixing'concrete or other plastic materials wherein it is desired to thoroughly mix an ingredient with other materials.

The objectsof my invention are to provide a concrete-mixer which will embody all of the efiiciency of mixers heretofore invented and possess additional, efficacy without utilizing the complicated parts usually found in mixers; one in which simplicity and elimination of friction predominate, thus requiring a minimum amount of ower for operation; one in which the mix- 1ng is-done within a drum and the removal of the material therefrom is accomplished by means independent of the revolutions of the drum, thus enabling the operator to remove the material after it is thoroughly mixed; also one which can be easily operated; and also one which can be constructed in a simple and durable manner at a very low cost.

The construction of *my mixer is such that it can be fed by any suitable means, that is, by a suitable power conveyer adapted to convey the materials to the inlet or feed side of the mixer, or it can be efliciently fed by means of the use of a wheelbarrow or any suitable hand means for placing or dumping the material into the mixer.

It will be made manifest that the foregoing objects and uses of my new invention are as stated, by consulting the drawings forming a part of this specification, in

flectors.' Fig, 8 is a fragmental view of one end of the drum. a

thereof.

In more fully referring to the drawings, wherein the same reference numerals and letters indicate corresponding parts throughout all of the figures, 20 represents sills or base plates which can be constructed of wood or any suitable material.

21 and 22 designate circular rims which are provided with legs or supports 21 and 22*, by means of which the rims 21 and 22 are supported u on the sills or base plates 20. These circular rims 21 and 22 have horizontal arms 21 and 22*, extending from the sides Secured to these horizontal arms 21 and 22 are flanged roller-bearings 23 which rotate u on a ournal-rod 24. They are keptapart y means of their flanges. A metallic tube 25 encircles the rod 24, as illustrated-in Figs. 1 and 2, and provides additional bearin means. These roller-bearings are made ad uStabl'e horizontally by means of elongated slots 26 provided in the horizontal arms 21 and 22. Vertical arms 21 and 22 extend upwardly from the circular rims 21 and 22, preferably on a linewith the diametrical axis of the rims. J ournaled into the upper ends of these vertical arms is a shaft 27, to which may be attached a crank 28 or a pulley 29. Keyed or splined to the shaft 27 is a sprocket-wheel 30. There may be one of these sprocket-wheels at each end of the shaft 27 within the frame formed by the circular rims 21 and 22 and the vertical arms 21 and 22.

31 indicates chain pulle s which are revoluble on the shaft 27, or t iey may be he ed or splined thereto; oneof these chain pul eys may be integral-with the sprocket-wheel 30.

It is ossible that in some forms of my invention may construct it and dispense with the sprocket-wheel 30 and utilize two sprocketwheels-in lieu of the chain pulleys 31. Uperatin on the chain pulleys 31 are chains 32.

33 esignates a sprocket-chain adapted to operate over the sprocket-wheel 30.

50 indicates the mixing drum of my invention; it being constructed with circular openings in the ends. ed of sheet steel or sheet metal of any character and is rovided at the ends with rims 51 and 52. l h ese rims have flanges 51 and 52. These flan es operate against the roller bearings 23 and t he flan es on the roller bearings operate outside of the flanges 51 and 52 and it is by means of the roller bearmgs and the fianges thereon that the drum is held in the desired position as the roller bearings re- It is preferably construct" crank 28 or pulley 29.

ceive-the side thrust and end thrust of the drum when it rotates. x

The sprocket rim 52 having sprockets adapted to mesh with the s rocket-chain 33, may be formed integral wit the rim 52, or it may be a separate rim, as shown in Fig. 4. i It is comprehensible that the drum is revoluble and that it is suspended from the shaft 27 by means of the chains 32. It is revolved by means of the sprocket-chain 33 0 crating in conjunction with the sprocket-w eel 30, the sprocket-rim 52*, the shaft 27, and the Within the drum 50 I place a plurality of central elevating buckets 53. These elevating buckets are curved, as shown in Fig. 4. I also provide within the drum a plurality of deflectors adapted to be secured adjacent to the ends thereof, as illustrated in Fig. 4. These deflectors 54 deflect the material to be mixed toward the central part of the drum 60 represents a feed hopper which is secured to the circular rim in any suitable manner. It is adapted to facilitate feeding the material to be .mixed into the drum of the mixer.

61 represents the outlet chute, adapted to be secured to the circular rim 22 and extend into the circular opening in the end of the drum, as shown in Fig. 4. The discharge chute 62 is pivoted to the rims 21 and 22 at points designated by 62 and 62*. It will be observed by consulting Figs. 2, 3 and 4 that the point of pivot 62 is at the upper corner of the discharge chute and that the chute is inclined, that 1s, it reclines from the point of pivot 62*, and the lower end thereof extends into the outlet chute 61, as illustrated in Figs. 3 and 4-. The lower end of the chute is attached to a yoke 63 which extends to the point of ivot 62 as illustrated in Fi s. 3 and 4. o the yoke 63 is attached a ever 64. The yoke is pivoted, at the point'designated by 62 to an arm 65, which is depended from the circular rim 22 to which it is attached. It will be observed that the discharge chute 62, is pivoted directly at the upper end designated by 62 and that the lower end is appended from the point of pivot 62 by means of the yoke 63. This provision is an essential feature of my invention, as it provldes means for placing the discharge chute 1n an inoperative position as shown in Fig. 8. This construction is of utility as it makes my new mixer more efficient in that the material can be left within the drum until it 1s thoroughl mixed, when the discharge chute can be p aced in the operative position and the material removed therefrom as the elevating-buckets drop the material into the discharge chute, from whence it is discharged into the outlet chute 61.

The, foregoing will suffice to explain the herein described and illustrated in the drawings,'but reserve the right to make such alterations, 'modifications, and variations as properly come within the scope of the inven general structure of my invention. 1 do not, I however, confine myself to the construction tion without departing from the spirit of the I protection prayed.

What 1 claim is i 1. A concrete mixer comprising a revoluble drum, a support for said drum, means within said drum for diffusing the material upon rotation of the drum, and a discharge chute extending into said drum and pivotally connected at its opposite ends to thesupport so as to permit it to be swung either into position to receive material carried upward y the drum or into an inoperative pos1t1on within the drum at one side thereof. 2. A concrete mixer comprising a revoluble drum having an opening in one end thereof, a driving shaft, a support for said driving shaft, means for suspending said drum from said driving shaft and for imparting a re-- volving movement to the drum, elevating buckets projecting inwardly from said drum intermediate the ends thereof, a plurality of deflectors arranged-within each end of the drum for deflecting the material from the ends of the drum toward the center thereof upon rotation of the drum, and a dischargechute mounted-on said support and projecting through said opening into the drum.

3. A concrete mixer comprising a revoluble drum, a driving shaft, a support for said driving shaft, means .for suspending said drum from said drivingshaft and for producing rotation of the drum when the driving shaft is revolved, friction rollers for taking the end thrust of said drum, elevating buckets projecting inwardly from the drum intermediate the ends thereof, a plurality of deflectors located within each end of the drum and arranged to deflect the. material from the ends of the drum toward the center thereof upon rotation of the drum, said drum having an opening in one end, and a discharge chute mounted on said support and projecting through said opening into the drum.

4. A concrete mixer comprising a revolu- 'bl'e drum, a driving shaft, a support for said driving shaft, means for suspending said drum from said driving shaft and for producing rotation of the drum when the driving shaft-is revolved, friction rollers mounted on said support for taking the end thrust of said drum, e from the drum intermediate the ends thereof, a plurality of' deflectors located within each end of the drum and arranged to deflect the material from the ends of the drum toward evating buckets projecting inwardly the center thereof upon'rotation of the drum,

sei,7ee

projecting through said opening into the drum, said discharge chute being pivotaliy supported so as to permit it to be swung into a position to receive material elevated by the drum or to be swung laterally into an inoperative position at one side of the drum.

5. A. concrete mixer comprising a revoluole drum open at the ends, a support for said drum, elevating buckets arranged intermediate the ends of the drum and projecting inwardly therefrom, a plurality of deflectors arranged within each. end of the drum for defleeting material from the ends toward the center of the drum, and a discharge chute extending through said drum and pivotaiiy the drum so as to permit the chute to be swung into position to receive niateriai carried upward by the drum or to he swung into an inoperative position Within the drum at one side thereof.

6. A concrete mixer comprising a revoluhle drum open at the ends, a support for said. drum, elevating buckets arranged intermediate the ends of the'drum and projecting inwardly therefrom, a plurality of deflectors arranged within each end of the drum for deflecting material from the ends toward the center of the drum,- a chute arranged within said drum and projecting through one end thereof, a pivotal connection between the latter end of-the chute and the support at a point near one side of the drum, and a yoke pivotally mounted on the support at the op posite end of the drum for supporting the other end of the chute.

In testimony whereof I afiix my signature in presence of two witnesses.

GEURGE PATCHETT WHITE.

Witnesses:

EVELYN S. CALVERT, Jr A. FERGUSON 

